Pharm Flashcards
what is the half life
time it takes for plasma concentration or the amount of drug in the body to be reduced by 50%
what drug levels are increased by grapefruit
nifedipine
verapamin
statins
midazolam
SSRIs
what drugs prolong qt interval
ondansetron
haloperidol
antidote for lead
succimer
local anesthetics end in what?
-caine
opioids side effects (MORPHINE)
miosis
out of it
resp depression
pruritus, pneumonia
hypotension, headache
infrequent elimination
nausea and nervousness
emesis
what kinds of drug is buprenorphine & nalbuphine
opioid agonist-antagonist
when would you use buprenorphine
mild to moderate pain, opioid addiction
less euphoric effect
less chance of abuse
what kind of drug is naltrexone
opioid antagonist
s/s of ASA toxicity (salicylism)
tinnitus
sweating
headache
dizziness
metabolic acidosis
when do we give aspirin to kids
kawasaki’s disease
what drugs can help lower bp (ABCD)
ACE inhibitors and ARBS
beta blockers
CCBs
diuretics
can you take ACEs or ARBS during pregnancy
no
what are the nonselective CCBs
verapamil and diltiazem
what are the effects of the non selective CCBs
cause vasodilation of the blood vessels, increasing coronary perfusion
in the heart - slow HR, slow AV node conduction, decrease force of contraction
what drugs are nifedipine, amlodipine, etc.
selective CCBs - only act on blood vessels not the heart!
side effects of selective CCBS?
dizziness, edema
gingival hyperplasia
reflex tachy
does hydralazine dilate the veins or arteries
arteries
what are the arterial AND venous dilators
nitrates (nitroglycerin, nitroprusside)
can you take calcium supplements with CCBs
yes! do not need to discontinue
which CCBs can cause constipation
nondihyrdos (vera and dil)
what kind of drugs are procainamide and lidocaine
sodium channel blockers
what kind of drug is amiodarone
K+ channel blocker
when would you use amiodarone
V tach if patient is awake and alert
PVCs
AEs of amiodarone
Liver, thyroid, pulmonary toxicity
when do you use adenosine
SVT
how do you administer adenosine
rapid push
what should you expect after adenosine
period of asystole
patient will feel like someone kicked them in the chest
MOA of digoxin
increases contractility while decreases HR
therapeutic range for digoxin?
.5-2
early s/s of digoxin toxicity
n/v
anorexia
yellow/green halos in vision
late s/s of digoxin toxicity
bradycardia leading to fatal arrythmias
who are at risk for digoxin toxicity
hypokalemia
hypomagnesemia
hypercalcemia
digoxin antidote
digoxin immune fab
what are inhaled glucocorticoids used for (i.e. budesonide)
for asthmatics to take regularly
not for acute attacks!
what are systemic glucocorticoids used for (i.e. methylprednisolone)?
acute attacks
best to use <10 days
what kind of drugs is montelukast
leukotriene receptor antagonist
when do you take montelukast
long term control, cannot abort ongoing attack
SE of montelukast
liver injury
neuropsychiatric effects (including SI)
churg-strauss syndrome
what do monoclonal antibodies (like omalizumab) act on
IgE –> reduce to decrease inflammatory reaction
how long do you have to monitor someone after monoclonal antiboties
2 hours after first 3 doses and 30 mins after all other doses
monitoring for anaphylaxis
examples of long acting beta 2 agonists
salmeterol
formoterol
side effects of beta 2 agonists
relaxation of smooth muscle in airways
but also tachycardia angina, tremor
what are theophylline and aminophylline used for
asthma maintenance
what kind of drug is ipatropium and what is it used for
anticholinergic
used for asthma and COPD, can be used for acute attack
what do alpha antagonists end with
-osin
when do you use apha antagonists
HTN
BPH
raynaud’s
pheochromocytoma
why are beta blockers used in caution with diabetics
will mask symptoms of hypoglycemia
which beta blockers are safer for asthmatics and diabetics and why
metoprolol, carvedilol, esmolol, labetalol,
because they are beta 1 selective
what do cholinesterase inhibitors end in and what is there effect
-stigmine
increase cholinergic effects - rest and digest
who do you avoid cholinergics with
intestinal obstruction
uti
asthma
hyperthyroidism
hypotension
do you take cholinergics with food
no! take on empty stomach
cholinergic drug side effects (DUMBELS)
diaphoresis and diarrhea
urination
miosis
bradycardia, bronchospasm
emesis
lacrimation
salivation
how do you treat muscarinic posioning
atropine (anti-cholinergic)
how do anticholinergics like oxybutynin impact urinary system
helps with urination retention
you would take oxybutynin for overactive bladder
what it is the antidote for anticholinergic toxicity
physostigmine